Can you briefly introduce the history of Qingdao Zhanqiao?

The trestle has a history of more than a hundred years. She has witnessed Qingdao’s humiliating years as well as Qingdao’s construction and development. In 1891, the Qing government issued an edict to build it in Qingdao (then called Jiaoao). In 1892, the Qing government sent General Zhang Gaoyuan of Dengzhou to station in Qingdao with four battalions of officers and soldiers. In order to facilitate the transportation of military supplies for the troops, two docks were built, one of which is the current trestle, 200 meters long and 10 meters wide. The original name of the pier was many, including Navy Pier, Qianhai Pier, Nanhai Pier, Li Hongzhang Pier, Grand Pier, etc. Another "Yamen Bridge" located in front of the General Military Office is 100 meters long and 6 meters wide. It is also known as the "Snail Bridge". Both terminals were designed by Chinese engineers themselves and are the earliest terminals in Qingdao. \x0d\　The trestle was the only maritime "munitions supply line" at that time. In other words, whoever controlled the trestle would control Jiaozhou Bay. In 1897, in the name of an exercise, the German army landed at Qingdao Bay, where the trestle was located, and occupied Qingdao by force. The trestle became a witness to the German invasion of Qingdao. After the German imperialists invaded and occupied Qingdao, in May 1901, the northern end of the original bridge was changed to a stone foundation and cement pavement. Wooden boards were laid on the steel bridge at the southern end, and light rails were built to extend the bridge body to 350 meters. It is still a military dock. . After the first dock of Dagang was built in 1904, the pier gradually lost its historical mission as a dock and began to be opened to tourists. During the First World War, after Japan landed at Yangkou of Laoshan Mountain and occupied Qingdao, it still held a military parade on this bridge to prove that it enjoyed "full sovereignty" over Qingdao. \x0d\ In 1922, after Qingdao was taken back by the Beiyang Government of China, the Chinese navy held a military parade here. \x0d\　In 1931, the Nanjing National Government invested heavily in rebuilding the bridge, which was contracted by the German firm Truly & Company, and the bridge was lengthened to 440 meters. An arrow-shaped breakwater was built at the southern end of the bridge, and a national-style Huilan Pavilion was built on the breakwater. The entire project was completed in April 1933. The trestle has since become the first sight in Qingdao. After the founding of the People's Republic of China, the People's Government allocated funds for many times to repair the trestle. In 1985, Qingdao City carried out a large-scale comprehensive renovation of the trestle. It was surrounded by iron cable guardrails on both sides, 12 pairs of European-style bridge lights stood opposite each other, and was paved with granite stones. steps. From the end of 1998 to June 1999, the municipal government once again allocated funds for a large-scale renovation of the trestle. This maintenance not only met the requirements of preventing wind and waves, preventing corrosion, and maintaining the original charm, but also matched the shore protection facilities on both sides, adding more The aesthetic effect makes the entire bridge rejuvenate. \x0d\\x0d\ In 2001, the seaside scenic area including the trestle was rated as the first batch of AAAA-level scenic spots by the National Tourism Administration.